Remove inaccurate artist record link

closes #1223
#1865: Remove unnecessary safe mode for alias/implications

These use Post.raw_tag_match, while the bug only exists when using
Post.tag_match.
Merge branch 'master' of https://github.com/r888888888/danbooru
fixes #1377
#1377: Fix test
fixes #1675
remove file size constraint on twitter cards since the large image will always be sent
fixes #1885
Fix artist excerpt with wildcard searches
fixes #1923
Merge branch 'master' of https://github.com/r888888888/danbooru
fixes #1901
Fix shift+e shortcut on shortcuts page
fixes #1928
fixes #1927
Prevent default click event in translation notice
Fix username searches
Add unapproved flagged reason to flag search
Add forum post html class
fixes #1922